Index: /trunk/src/VBox/Devices/Audio/DrvHostPulseAudio.cpp
===================================================================
--- /trunk/src/VBox/Devices/Audio/DrvHostPulseAudio.cpp	(revision 68302)
+++ /trunk/src/VBox/Devices/Audio/DrvHostPulseAudio.cpp	(revision 68303)
@@ -539,4 +539,7 @@
         /* For using pa_stream_get_latency() and pa_stream_get_time(). */
         flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
+
+        /* No input/output right away after the stream was started. */
+        flags |= PA_STREAM_START_CORKED;
 
         if (fIn)